Friday, July 8, 2011

General Suspension Troubleshooting 1980 US Vehicles

General Suspension Troubleshooting For 1980 American Vehicles

Condition and Possible Cause:

Front End Noise
  • Loose wheel lug nuts. Loose or worn wheel bearings, shock absorbers or shock mountings, strut bushings, struts or lower control arm
  • Loose steering gear to frame, mounting bolts.
  • Steering knuckle arm contracting lower control arm wheel stop
  • Worn upper control arm bushings 
  • Insufficient lubrication and ball joints
Front Wheel Shake, Shimmy and Vibration
  • Loose or worn wheel bearings, tie rod ends, strut bushings, upper control arm ball joints, shock absorbers or linkage pivots.
  • Tires or wheels out of balance
  • Incorrect  front wheel alignment
  • Propeller shaft balance
Car Pulls to One Side
  • Mismatch or uneven tires
  • Broken or sagging springs
  • Loose or worn strut bushings
  • Incorrect front wheel alignment or rear axle alignment
  • Power Steering Gear control valve unbalance
  • Front Brakes dragging
Abnormal Tire Wear
  • Unbalance or non-rotation of tires
  • Sagging or broke springs
  • Front end alignment
  • Faulty shock absorbers
  • Overloaded car
Scuffed Tires
  • Toe-in incorrect
  • Excessive speed on turns
  • Suspension arm bent or twisted
Springs Bottom or Sag
  • Automobile overloaded
  • Leaking or worn out shocks
  • Bent or Broke Springs
Ride Too Soft, Too Hard or Excessive Vertical Motion of Wheels
  • Faulty or improper operation of shocks
  • Incorrect Springs
Car Leans or Sways on Corners
  • Loose stabilizer bar or missing link
  • Faulty shocks or shock mountings
  • Broken or sagging springs
"Dog" Tracking

  • Damage rear suspension arm or worn bushings
  • Broken leaf springs
  • Bent rear axle housing
  • Frame or underbody misalignment
Broken Springs
  • Loose "U" Bolts, or inoperative shock absorbers
Noisy Shock Absorbers
  • Loose bolts or studs
  • Undercoating on shock absorber reservoir
  • Excessively worn bushing
  • Air Trapped in system
Shock Absorber Leaking Fluid
  • Worn seals, or crimp in reservoir tube.
Toe Not Adjustable to Specifications
  • Lower control arm bent
  • Frame bent
Camber Not Adjustable to Specifications
  • Control arm bent.
  • Frame bent
  • Hub and bearing assembly not properly seated on mounting surface